package com.geqian.structure.utils;

import org.springframework.beans.BeansException;
import org.springframework.beans.factory.NoSuchBeanDefinitionException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.core.io.Resource;
import org.springframework.stereotype.Component;

import java.util.Map;

@Component
public class SpringContextUtils implements ApplicationContextAware {


    private static ApplicationContext applicationContext;

    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        SpringContextUtils.applicationContext = applicationContext;
    }

    public static Object getBean(String name) throws BeansException {
        return applicationContext.getBean(name);
    }

    public static <T> T getBean(String name, Class<T> requiredType) throws BeansException {
        return applicationContext.getBean(name, requiredType);
    }

    public static <T> T getBean(Class<T> clazz) throws BeansException {
        return applicationContext.getBean(clazz);
    }

    public static boolean containsBean(String name) {
        return applicationContext.containsBean(name);
    }

    public static boolean isSingleton(String name)
            throws NoSuchBeanDefinitionException {
        return applicationContext.isSingleton(name);
    }

    public static Class<?> getType(String name)
            throws NoSuchBeanDefinitionException {
        return applicationContext.getType(name);
    }

    // classPath:application.properties
    public static Resource getResource(String file) {
        return applicationContext.getResource(file);
    }


    public static <T> Map<String, T> getBeansOfType(Class<T> clazz) throws NoSuchBeanDefinitionException {
        return applicationContext.getBeansOfType(clazz);
    }

}